Comment 2 for bug 890219

Man page:
If suexec is called by a user with name 'username', it will look into /etc/apache2/suexec/username for configuration. If the file does not exist, suexec will abort. By creating several config files, you can allow several different apache run users to use suexec.

Oh yes, that could so much clearer.

It would seem a more interesting feature to provide one configuration file for each user given in suexecusergroup instead of one pr. apache server instance.